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Watch The Big Bang Theory Season 8 Episode 20 Online | Available in HD on OSN+

The Big Bang Theory

نظرية الانفجار الكبير - ذا بيغ بانغ ثيوري

2014

19m

E20 • The Fortification Implementation

حلقة 20 • إقامة حصن البطانيات

Wolowitz meets the half-brother he never knew he had.

Comedy

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The Locomotion Interruption

E1 • The Locomotion Interruption

Leonard and Amy take a road trip.

Leonard and Amy take a road trip.

The Junior Professor Solution

E2 • The Junior Professor Solution

Howard takes a class that Sheldon's teaching.

Howard takes a class that Sheldon's teaching.

The First Pitch Insufficiency

E3 • The First Pitch Insufficiency

Howard is invited by NASA to throw the first pitch at a game.

Howard is invited by NASA to throw the first pitch at a game.

The Hook-Up Reverberation

E4 • The Hook-Up Reverberation

Penny wonders why Raj's girlfriend doesn't like her.

Penny wonders why Raj's girlfriend doesn't like her.

The Focus Attentuation

E5 • The Focus Attentuation

The guys unsuccessfully try to invent "the next big thing".

The guys unsuccessfully try to invent "the next big thing".

The Expedition Approximation

E6 • The Expedition Approximation

Sheldon and Raj venture underground in the name of science.

Sheldon and Raj venture underground in the name of science.

The Misinterpretation Agitation

E7 • The Misinterpretation Agitation

Penny's flirtatious sales techniques work a little too well.

Penny's flirtatious sales techniques work a little too well.

The Prom Equivalency

E8 • The Prom Equivalency

Love is in the air when the gang recreates a prom night.

Love is in the air when the gang recreates a prom night.

The Septum Deviation

E9 • The Septum Deviation

Leonard's minor surgery leads to Sheldon's major reaction.

Leonard's minor surgery leads to Sheldon's major reaction.

The Champagne Reflection

E10 • The Champagne Reflection

Sheldon records the final instalment of "Fun with Flags".

Sheldon records the final instalment of "Fun with Flags".

The Clean Room Infiltration

E11 • The Clean Room Infiltration

Amy forces Sheldon to celebrate a Victorian Christmas.

Amy forces Sheldon to celebrate a Victorian Christmas.

The Space Probe Disintegration

E12 • The Space Probe Disintegration

The guys finally agree to do something the girls like.

The guys finally agree to do something the girls like.

The Anxiety Optimization

E13 • The Anxiety Optimization

Sheldon asks his friends to challenge him.

Sheldon asks his friends to challenge him.

The Troll Manifestation

E14 • The Troll Manifestation

Leonard and Sheldon defend themselves from an online bully.

Leonard and Sheldon defend themselves from an online bully.

The Comic Book Store Regeneration

E15 • The Comic Book Store Regeneration

Everyone awaits the reopening of Stuart's comic bookstore.

Everyone awaits the reopening of Stuart's comic bookstore.

The Intimacy Acceleration

E16 • The Intimacy Acceleration

Sheldon and Penny try an experiment in falling in love.

Sheldon and Penny try an experiment in falling in love.

The Colonization Application

E17 • The Colonization Application

Sheldon applies for a one-way mission to colonise Mars.

Sheldon applies for a one-way mission to colonise Mars.

The Leftover Thermalization

E18 • The Leftover Thermalization

A final family dinner is held for Mrs. Wolowitz.

A final family dinner is held for Mrs. Wolowitz.

The Skywalker Incursion

E19 • The Skywalker Incursion

Sheldon and Leonard try to sneak onto Skywalker Ranch.

Sheldon and Leonard try to sneak onto Skywalker Ranch.

The Fortification Implementation

E20 • The Fortification Implementation

Wolowitz meets the half-brother he never knew he had.

Wolowitz meets the half-brother he never knew he had.

The Communication Deterioration

E21 • The Communication Deterioration

Penny contemplates a return to acting.

Penny contemplates a return to acting.

The Graduation Transmission

E22 • The Graduation Transmission

Raj's father cuts him off from the family fortune.

Raj's father cuts him off from the family fortune.

The Maternal Combustion

E23 • The Maternal Combustion

Sparks fly when Leonard and Sheldon's mothers finally meet.

Sparks fly when Leonard and Sheldon's mothers finally meet.

The Commitment Determination

E24 • The Commitment Determination

Sheldon pushes Leonard and Penny to set a date.

Sheldon pushes Leonard and Penny to set a date.